Mixer



Oct. 30, 1923.

J. o. H. cAzENovE 'MIXER Filed Feb. 27. 1922 n N on T T. A

Patented ct. 30, 192,3.

i UNirsnflfsrariss JAMES O. H. CAZENOV, OF NEW YORK, N. Y.

Mix-En.

applicati@ filed February Beit known that l, Janus O. H. Caza# Novn, a citizen of the United' States, anda resident of New l ork`1n the county of New Yorkand State of New .iork, have inventedYV certain new andv useful Improvementsin Mixers, of which the following, taken in connec'tionv with the accompanyingdrawings, is a specication.

Thisinvention relates to mixers and more particularly to mixers of the egg beater type having rotatable beater blades. "i

It has been lfound by experimenting that various substances such as eggs, dressings, and other liquids which require considerable beating or aerating for proper mixing, may be more' thoroughly mixed 'and in less time if the mixing meansL be periodically reversed. As it is obviouslyunhandy foi" an operatorto periodically reverse the rotatory movement of hishand, it is an object of this invention to provide a mixer which will periodically'reverse the mixing means functioning in the liquidwhile the operator actuates the operating means continuously in a single direction. `Another objectjis the provision of a simple, cheapr and highly I efiicfient' mixer applicable to many uses.

Other objects will appear as the description proceeds.

The invention will be best understood from'a consideration of the following detailed description taken in connection with the accompanying` drawings forming part of this specification and in which similar reference numerals refer to similar parts; it being understood,however, that the invention is not confined to any strict conformity with the showing in the drawings, but may be changed and modified so long as such changes and modifications mark no material departure from the salient features of the invention as expressed in the appended claims.

In the drawings Figure l is a side elevation of the device embodying theinvention, and showing a portion of the supporting frame broken away to expose the operating mechanism,

Fig. 2 is a vertical sectional elevation taken on the line 2-2, of Fig. 1,'

Fig. 3 is a perspective view of a detail of the operating mechanism.

Referring indetail to 'the drawings, the mixer consists of a supporting frame, preferably constructed of sheet metal, compris- 27, 1922.' serial No. 539,592.'

ing in its simplest formv a handle l, a stem 2 and two parallel depending supporting brackets 3 and a, all 4struckup Vfrom a single strip of metal preferably in the form as illus- 00 tra'ted in Figs. 1 and 2, the parts forming `the stem 2 being riveted together as at 5. The lower part of bracket 4C is bent at right angles to form a horizontal apertured extension la which is rigidly connected to the lower endof bracket 3, and which serves to maintai'nthe two "brackets in parallel Vrelation.

An operating crank 6 is provided with a `horizontal shaft 7 which is both rotatable T0 and laterally slidable in bearings 8 and 9 mounted respectively in brackets 3 and t.

Bevel gears 10 and 11 are rotatably mount` ed fon the periphery of the bearings 8 and 9, respectively, within the space enclosed by the brackets, and are adapted to mesh with the Vopposite sides of a bevel pinion 12, .the latter being rotatably mounted vabove the horizontal bracket extension La on one 'end of the beater blade supporting rod 13. The spur gears 14 and 15 and associated beater blades '16 and 17 arelmounted onthe rod 13 in the usual way in this form of mixer, so that it is thought that furthertidetailed description willbe unneeessarylf4 i t5 `Bevel gearfl'l is provided with a series of radialteeth (see Fig. 1) or what may be designated a circular rack 19 which is formed on the inner face of said gear, that is, on the face which carries the bevel teeth. This rack 1U is positioned intermediate the axis and eircumference of the gear face. Gear 10 is similarly provided with a circular rack 18, Fig. 2. After the gears 10 and 11 are in operative position in the supporting frame, the 150 respective racks are diametrically opposite and face toward each other.

A clutch bar 2O is rigidly secured to the shaft 7 of the crank 6 midway between the bearings S and 9 as by the rivet 21. The lf opposite faces of this bar are provided with two integral teeth 22, 2221 and 23, 23, respectively; teeth 22 and 22L being located adjacent one end of the bar, and teeth 23 and 23a, adjacent the opposite end, as clearly 1*!5 shown in Fig. 3. The rack-engaging faces of all of the above teeth are preferably in the same vertical plane as the axis of shaft 7 which is at right angles to the sides of bar 20.

To operate the mixer, the operating crank 6 is moved laterally in bearings 8 and 9 to ill) the position shown in solid lines in Fig. 2, whichl movement causes the teeth 22EL and 23 oi" bar 2O to mesh with certain teeth in the circular rack 19 on the gear 1l. It' c 'ank 6 is now turned. in a clockwise direction, bar

left. lf, however, crank 6 is moved tothe position as indicated by the dotted lines in Figj2, the teeth 22l and 23ZL will disengage rack 19 and teeth 22 and 23 will mesh with certain teeth of rack 1S. Since crank 6 isV still being rotated in a clockwise direction,

gear l0 will rotate in unison therewith. and,

being in mesh with the opposite side of pinion 12, will cause the latter together with its associated beater blades to reverse itsdirection ot rotation.

Thus it will be apparent that aperiodic reversal in the direction of rotation may be imparted to the beater blades while turning the crank always in the same direction simply by sliding the crank arm in the bearings 8 and 9 toward or away from the trame a small predetermined distance.

I claim y Y l. In a mixer having rotatable mixing means, manually-operated means adapted to rotate said mixing means in either direction at the option of the operator ot' said manually-operated means.

2. In a mixer having mixing means includ* ing beater blades, manually-operated, means 'adapted to rotate said mixing means in either direction at the option of the operator or the manually-operated means.

3. In a mixer having mixing means, means connecting said mixing means for rotation in one direction, means connecting said mixing means for rotation in the opposite direction, and manually-operated `meansadapted to actuate either of said connecting means at the option ot1 the operator thereof.

- 4. na device of the class described, ro.- tatable mixing ineans,-gear means adapted to rotate said mixing means in one direction, other gear means adapted to rotate said means the o aposite direction, and voperatf ing Vmeans adlapted toselectively engage either of said gear means.

5. In a device et the class 'describedfa plurality oi rotatable'mixers, a bevel pinionVA connected thereto,v a pair ot bevel gears meshing continuously on opposite sides of said pinion, avcrank adapted for rotationin one direction, means rigidly secured tov Vsaid crank and adapted to engage means on either of the bevel gears whereby` the engaged gear will be rotated in unison with'the crank,and supporting means `,for the above-named mechanism. 6. In a devicev ot the class described, a frame, a plurality o1E beater blades rotatably mounted thereon, a'bevel pinion rigidly connected to one of the beater blades, a pair of horizontally aligned bearings mounted in said frame, a crank rotatably and slidably mounted in said bearings,` gear Vmeans rotatably mounted on the periphery of said bearings, means connecting both of said gear means to said beater blades, andrmeans connecting either or' said gear means to said crank by a sliding movement of the crank in the bearings. i

Signed at New York in the county and State of New York this 29th dals7 of January, 1922.

JAMES O. H. CAZENGVE. 

